Daikin advice

[Mickvee]

Been working on a Diakin MY90AVI multi split system connected to 3 x FTY35AVI in door units. On the outdoor unit PCB it has a multi position switch too set the master room?. What would be the master room:confused:. Has anyone got the manual for this unit as could not find it on Daikin site.

[frank]

You have to decide which indoor unit becomes the master and controls heat / cool changeover. It is up to your customer or you to decide.

The other fan coils on the system then have to follow suit.

[Mickvee]

Thanks Frank:)